Deoxyribonucleic Acid: DNA

Understanding DNA can take a lot of studying and confusion to even get the general idea of the concept. The structure of DNA is very complicated and complex to understand, but researchers James Watson, Francis Crick, Maurice Wilkins, and Rosalind Franklin all developed the idea of the DNA structure in 1953. Deoxyribonucleic Acid is found in the nucleus of the cell. It is a double stranded molecule that contains the genetic code and is the main component of chromosomes. DNA is the blueprint of organisms. Nucleotides are the basic unit of DNA and they are made up of sugar, phosphate, and one of the four basis including adenine,

Deoxyribonucleic acid, or DNA as it is most commonly known, is a strand of molecules found within the cell nucleus of all living things. It is called a “genetic fingerprint” because each is different to the other and everyone, apart from identical twins, have

DNA per medical dictionary is defined as A nucleic acid that carries the genetic information in cells and some viruses, consisting of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. DNA sequences are

Each human being has something called DNA. DNA is described as genetics and an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms. DNA constructs of two nucleotide strands coiled around each other in a ladder like arrangement with the sidepieces composed of alternating phosphate and deoxyribose units and the rungs composed of the purine and pyrimidine bases adenine, guanine, cytosine, and thymine. Each chromosome consist of one continuous thread-like molecule of DNA coiled tightly around proteins and contains a portion of the 6,400,000,000 basepairs that make up your DNA.

Structure and function in Biology is a broad concept that can be explored within a diverse range of topics across the subject matter. The following essay will be focussed mainly on the subject of Deoxyribonucleic Acid, or more commonly DNA. DNA is a highly complex, intricate and extraordinary macromolecule found within all living cells. DNA is a "biochemical noun" and can be defined as "...a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information." [Oxford Dictionary, c2016] DNA is found in the nucleus of eukaryotic cells, enclosed within a double membrane. Eukaryotic cells are multifaceted and require a high level of regulation to ensure smooth functioning. The double membrane of the nucleus allows gene expression, a key function of DNA, to be efficiently regulated.

DNA is a molecule that has a repeating chain of identical five-carbon sugars (polymers) linked together from head to tail. It is composed of four ring shaped organic bases (nucleotides) which are Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). It has a double helix shape and contains the sugar component deoxyribose.

One of the most significant accomplishments in forensic science is being able to use DNA, or deoxyribonucleic acid, to aid in criminal investigations. DNA is found in nearly all cells, both human and nonhuman. Most DNA is found in the nucleus, the center and most important part of any cell, where it is called nuclear DNA. Along with the nucleus, a small amount that can also be found in the mitochondria, called mtDNA. A single strand of DNA holds the hereditary information necessary for cell life to occur. DNA’s hereditary code is made up four bases: Adenine, Cytosine, Guanine, and Thymine. Humans have six billion bases and even so, 99.9% of all those bases are the same in everyone. With all of this, there is still room for variation in DNA

1) Watson and Crick: Used Rosalind Franklin’s x-rays of DNA to conclude that DNA took the shape of a double helix.

DNA contains the genetic information for producing proteins. Firstly, the DNA coding leaves the nucleus to the cell’s cytoplasm where it is read and synthesized into a single protein. However, if a mutation occurs it affects the DNA coding for proteins. For example, Progenies was resulted by a mutation that occurred in the DNA, which caused the transcribed

The origins of DNA were first discovered during 1857 by Gregor Mendel the "Father of Genetics”, whom was performing an experiment of genetics with pea plants, and would provide a basic foundation towards DNA and Genetics. Friedrich Miescher and Richard Altmann in 1869 were also part of the first people to discover DNA. While testing some sperm of a salmon, they discover a strange substance that they would name as "nuclein", which is known as DNA. This new form of "nuclein" (DNA) would be found to only exist in chromosomes. Frederick Griffith, a researcher, found the basis on DNA, from a molecule inheritance experiment involving mice and two types of pneumonia. His findings were that, when virulent disease is heated up (to kill) and is

The role of DNA in cells is to store genetic information for extended periods of time. DNA are long strands that contain genetic code, or instructions, for the development and functions of living things. DNA tells cells what to do and how to function, they are found in the nucleus of a cell. The role of mitochondria in cells is to produce and supply the cell with energy, so it can complete its function. They can be found floating around in the cytoplasm of the cell. Mitochondria are able to duplicate or reproduce themselves without interfering with the replication of the cell and vise versa. The value of mitochondrial DNA (mtDNA) is to supply cells with energy by absorbing the sugars that were broken down from food. Mitochondrial DNA contains

What is DNA? Is it these winding strands that look like ladders or is it what gives a person blonde hair and blue eyes? Actually, DNA is both of these things. DNA is a person’s genetic makeup–their hereditary blueprint passed on by their parents. It is a part of almost every cell in the human body. In each cell, a person’s DNA is the same; it stays the same throughout their lifetime. DNA is found in skin tissue, sweat, bone, the root and shaft of hair, earwax, mucus, urine, semen, and vaginal or rectal cells. The DNA found in a person’s saliva is the same as the DNA found in their blood. Parts of the DNA determine our physical characteristics, such as eye and hair color, height, and bone structure, but the

DNA, or Deoxyribonucleic acid is the building block of life, every living thing has this molecule, This genetic code. But what part did he play? He did not create it (obviously)

DNA is a long curved structure, made up of pairs of four specific bases: adenine, guanine, cytosine, and thymine, is the repository of a code from which all of our cells are made. The code is made up of base pairs which look like the

When DNA replicates or its transcribed into RNA can cause changes in the sequence of bases which makes up the genetic code. Know that a set of three bases in a gene in DNA codes for a particular amino acid.